libjava/testsuite/libjava.lang/InvokeInterface.java

   1 import java.lang.reflect.*;
   2
   3 interface one
   4 {
   5   int n(int N);
   6 }
   7
   8 interface two
   9 {
  10   int nn(int N);
  11 }
  12
  13 interface three
  14 {
  15   int nnn(int N);
  16 }
  17
  18 class arse implements one, two
  19 {
  20   public int n(int N) { return N; }
  21   public int nn(int N) { return N*2; }
  22 }
  23
  24 class arsey implements two, one, three
  25 {
  26   public int n(int N) { return N*4; }
  27   public int nn(int N) { return N*8; }
  28   public int nnn(int N) { return N*16; }
  29 }
  30
  31 public class InvokeInterface extends arse
  32 {
  33   int f ()
  34   {
  35         return flunk.nn(1);
  36   }
  37   static two flunk = new arse();
  38   static three flunkey = new arsey();
  39   public static void main(String[] s) throws Throwable
  40   {
  41         Class[] argtypes = {Integer.TYPE};
  42         Method m = two.class.getMethod("nn", argtypes);
  43         Object[] args = {new Integer(1)};
  44         System.out.println(flunk.nn(1));
  45         System.out.println(m.invoke(new arse(), args));
  46         m = arse.class.getMethod("nn", argtypes);
  47         System.out.println(m.invoke(new arse(), args));
  48         m = two.class.getMethod("nn", argtypes);
  49         System.out.println(m.invoke(new arsey(), args));
  50         m = three.class.getMethod("nnn", argtypes);
  51         System.out.println(m.invoke(new arsey(), args));
  52         m = arsey.class.getMethod("nnn", argtypes);
  53         System.out.println(m.invoke(new arsey(), args));
  54   }
  55 }